Improvement in steam water-heaters



W. B. MACK.

, Steam Heater. x No; 92,622. Patented July 13, I869.

' 797370656 5 fivenzvr dhtitml fittin WILLIAM B. 'MAGK", orDETROITIMIIGHIGAN,

Letters Patent No. 92,622, dated July 13, 1869.

IMPROVEMENT IN swam warren-Humans.

The Schedule referred to in these Letters Patent and making part of heem To all whom it may concern Be it known that I, WILLIAM B. MACK, ofthe city of Detroit, in the county of Wayne, and State of Michi gan,have invented a new and useful improvement insteamheaters towater-delivery pipes, which I term a Steam Water-Heating-Pipe Nozzle;and I do hereby declare that the following is a-full, clear, and exactdescription of the construction and operation of the same, referencebeing had to the annexed drawings, making a part of this specification,in which- Figure 1 is a longitudinal section through the centre of thenozzle. v D

Figure 2 is a cross-section of thecentral dischargenozzle, at or aboutthe line a. I

My invention consists in the construction of avtapering corrugatedradiatorpipe, secured centrally within a steam-casingor chamber, theseveral parts being;

arranged relatively with each other, as hereinafter described.

To enable those skilled in this branch of mechanical art and science, tofully understand and construct my invention, I will proceed to describeit..

I usually construct my steam-heating water-nozzle in four sections,exclusive of the connecting-parts and valve, substantially as seen. g

The section marked -A is a hollow cylindrical coupling, connected at oneend by a screw-thread, or other suitable way, 'to the -water-pipe,represented by. a broken section at B, and it is provided at the other,with a valve-seat, s, and valve, 0, of any suitable'kind.

It is also threaded at the valve-end, to connect it with anothersection, D, forming an enlarged 'hollow steam-chamber casing, furnished,just above the valvelift, with a seat or diaphragm, c, boredthro'ugh inthe centre, and tapped to receive the threaded endof a thimble, f, towhich the but-end of the corrugated radiator-pipe (to be presentlydescribed) is brazed. v

This pipe, shown at E, is firmly connected tothe steam-casing D, byscrewing the threaded end into the diaphragm-hole e aforesaid, thethimble and bore of the casing being of such relative proportionsas toform an annular space between for-steam, which is supplied from asteam-generator, through a steampipe, a broken portion, 1?, of which isshown as screwed into the wall of the chamber.

I usually construct the radiator-pipe of sheet-copper or brass, of atapering form, substantially as shown, and corrugate it deeply,excepting at the extreme discharge-point, which is left round.

These corrugations, as clearly shown infig. 2, arei'or the purpose ofexposing a. large radiating-surface to the action of the steam, and, atthe same time, break up the enclosed water-column into comparativelythin sheets. .v

A tapering cylindrical casing, F, is screwed on the casing D, so as tosurround the corrugated pipe nearly its whole length, thus forming atapering continua-- tion of the annular steam chamber in the casing D. 1

An embouchnre nozzle-piece, G, reamed out from each end, hour-glassfashion, the area of the contrac tion being about eqnal to the area ofthc water-discharge end of the pipe, is then screwed on the taperend: ofthe steam-casing, so that the steam-space may be narrowed down, when inclose approximation to the discharging-water column.-.

A hose or pipe, H, (see dotted lines,) is; then coupled v to theembouchure, to convey the water, at the desired temperature, to anydesired point in a building.

It-is not absolutely necessary that the parts marked A and D should bemade in two separate sections,

for it will be readily seen that theymay be cast totemperature, thesteam-pipe P must be furnished with a cook or valve, for the purpose ofgraduating thevolume of steam admitted according to itsiudicatedpressure and condition, that is to say, whether in a surcharged state ornot.

The operation is as follows: i The steam being admitted into the annularchamber J, of a temperature in proper exeessof that re- .quired of thewater, and thecold water (under a relative area-pressure exceeding thatof the steam) turned on into the corrugated water-pipe, the waterabsorbs a certain portion of the steam heat, conducted through thecorrugated shell of the pipe, which heat is further increased by thecontact with and condensation of the steam, as the diminishedwater-column is'be'ingrapidly driven through the steam-ring surroundingthe central contraction of the embouchure.

When the rushing water-column fills the embouchure-stricture and hose orpipe beyond, the stea1n pressure behind accelerates the initial velocityof the water, and causes it to. be delivered at a distant point,so'rapidly as topart with but little of its heat acquired bycontinuously and silently absorbing the steam-heat, by radiation andcondensation, without any of the detonations usually produced bysteamand-water contact. 7

Should, by inadvertencathe proper relative steamand-water pressure bereversed, the check-valve 0 will close.

Besides being intended to furnish a constant supply ofhot'water formanufactiu'ing-purposes, my heatingnozzle, from its compactness and itseconomical use of steam, is especially adapted for domestic andotheroccasional and immediate uses.- g I am aware it is not new to heatwater by the di rect; contact with steam-currents, or by placing thepipe, through which inflows, in a steam-chamber; therefore, I (101101;claim either mode, singly orcombined; irrespectire of the peculiarmodifications and arrangements by which. I have better adapted themforgeneral and special uses. Therefore,

What I claim as my invention, and desire to secure by Letters Patent, isas follows:

I claim the construction and arrangement of the tapering corrugated pipeE, ernbouchure-nozzle G, and

check-valve O, with the steam-casing E, and steamand-walter casings D A,when the same are connected with steam and water-supply pipes P B,substantially in the manner set forth.

WILLIAM B. MACK. Witnesses;

JOSEPH KUHN, J AMES RoBmsoN.

